What is the primary treatment for hydrocephalus?

A. Ventriculoperitoneal (VP) shunt surgery is the most commonly used treatment to divert CSF and lower intracranial pressure; endoscopic third ventriculostomy is an alternative for selected obstructive cases. B. Deep brain stimulation (DBS): Used for movement disorders (e.g., Parkinson’s) and some psychiatric conditions - not a treatment for hydrocephalus. C. Chemotherapy: Used for many malignancies, not for hydrocephalus unless hydrocephalus is secondary to a chemo-sensitive tumor and even then shunting/CSF diversion is the immediate CSF management. D. Electroconvulsive therapy (ECT): Used for refractory severe depression and some psychiatric disorders - not a hydrocephalus treatment.